Here's some valve (tube) suppliers for you. Note that the fellows marked with are trade wholesalers or
manufacturers, and normally deal with large quantities or high value orders unless noted
otherwise....

Losconi - the Austrian
importers/exporters of Tesla/JJ tubes. They have ceramic valve bases too, and
although they are a wholesaler, will deal with quantities as small as 4 and take plastic,
check out their page!

Micronetics
- based in Geneva, Switzerland the following is from their web site:
"Micronetics has been established for nearly 40 years, most of that
time from its base in the Geneva Free - Zone. where it has been Master
Stocking Distributor of Phlips, Mullard, Miniwatt, Valvo etc.
and Eimac tubes. Today Micronetics can still boast that it stocks
over 700'000 tubes, mainly of Philips production, as well as
Telefunken, Siemens and GEC, etc. In addition, to all premium
American brands. Micronetics also supplies Elektronska Industrija
tubes dealing with this factory since the mid '70's.". (Added
9/4/2001).

Penta
Laboratories - based in the USA with distributors around the
world. Their product line covers broadcast, industrial, scientific,
military, medial, high end audio and guitar amp tubes. Penta's
inventory of over 8000 stock lines is sourced from NOS and leading current
manufacturers, and in excess of a million vacuum tubes. Online
prices and ordering too! (Added
17/10/2001).

Ruby Tubes have an
online catalogue, and supply cab covering, grill cloth and other amp parts in addition to
valves.

Radio
Service Club have a large inventory of US and European vacuum tubes
for sale, based in the Netherlands, prices are conveniently in Dutch
Guilders, Euros, and US Dollars. Some of the tubes in their
catalogue are "hard to find" items. (Added
2/10/2001).

SAS Audio Labs
pride themselves on the quality of their components - well worth a look, especially for
the high end audio buffs. Added 2/6/99.

Svetlana
"is Russia's leading designer and manufacturer of power tubes. The company offers a
line of well-engineered, carefully-constructed, rugged power grid and audio tubes for
Broadcast, Industrial, Amateur Radio and Audio users". They have a library of
very neat data sheets on their site, and applications notes.

Triode Electronics -
Worldwide Service, Neighbourhood Prices since 1985. Tubes, components and lots of
technical info. See the homebrew links for more detailed links
to this invaluable site.

Tube
World - massive stock of NOS tubes. Check the page, they have stock levels and
prices displayed on the web page...

Vintage Radio Page
- "Purveyor and Collector of Vintage and Antique Radios/Radiograms, Service
Data,Valves (Tubes), Components and Related Items, plus Full Restoration and Repairs
Service on all types of valve equipment.". Malcolm has lots of
old valves/tubes....

VT52 - Jim de
Kort's site has lots of stuff for amp builders, including projects, tube data, and tubes
for sale.

Watford
Valves - over 50000 types stocked, with online prices for their most
popular tubes. Premium matching services available, suited to the
needs of discerning guitarists. (added 23/7/2000).

Western Electric - needs no introduction, the
manufacturers of some of the most sought after vacuum tubes in the world.
New
10/10/98.